Pneumatic straw-stacker.



Patented lune 26, |900.

H.y L. HEGLAND. PNEumATlc sTnAw sTAcKEn.

(Application led Feb.V 19, 1900.)

2 sheets-snm s.

(No Model.)

[QCSSCS M n-s Noms PETERS co, wcm-nwo., wAsmNc-TON. ny c.

N6. 652,363. y Patented June 26, |960. H. L. HEGLAND.

PNEUMATIC STRAW STACKER.

(Appxieion med Feb. 19, 1900.)

(No Model.) 2 Sheets-Sheet 2.

rr-E nofws mais 0e. Phoruumo.. wAsHma'rcN, D. c.

.Panni (L ENCE.

HANS L. HEGLAND, OF OYRUS, MINNESOTA.

PN EUIVIATIC STRAWeSTACKER.

SPECIFICATION forming part of Letters raten@ No. 652,363, dated .nm-e 26, leoo. Application filed February 13, 190i). Serial No. 5,832. (No model.)

To a/ZZ whom it may concern: f

Be it known that I, HANS L. HEGLAND, a citizen of the United States,residing at Cyrus, iu the county of Pope and State of Minnesota, have invented a new and useful Pneumatic St1aW'-Stacker, of which the following is a specification.

My invention is an improvement in pneumatic straw-stackers, the object of my invention being to provide means for preventing back currents of air through the separator and to exhaust the dust and chaff from the separator and blow the same through the stacker-tube, together with the straw.

My invention consists in the peculiar construction and combination'of device hereinafter fullyT set forth, and` pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view through a portion of a threshing and separating machine provided with an apparatus embodying my improvements. Fig. 2 is a vertical transverse sectional view of the same, taken on the line 2 2 of Fig. l. Fig. 3 is a det-ail exterior elevation showing afan drum or casing provided with adjustable wind-boards at the intakes thereof.

The separating mechanism here shown is of the usual construction, in which the blastfan 1 is adapted for discharging a rearward and upward current of air under the riddles and into the casing 2 at the rear of the machine. In the existing machines of this class a serious objection is that currents of air are caused to circulate through the casing and to carry out the dust and other impurities with them through the feed end of the casing to the annoyance of the attendants. It is the purpose of my present invention to avoid this difficulty, and I herein show an embodiment of my said invention, described as follows:

The housing, casing, or drum 3 of the blastfan 4 for creating a blast of air upward and outward through the stacker-tube 5 is provided near its ends on the inner sides of the casing 2. and near the ends or sides of the fan with intakes which communicate with the space below and in rear of the separating mechanism, said intakes, as herein shown, comprising the pipes 6, which open at their upper and lower ends and communicate, re-

spectively, with the interior of the casing of the separator mechanism and with the drum or fan casing 3. It will be observed by reference to Fig. 1 of the drawings that the upper side of the fan casing or drum is eX- tended rearward, as at 7, and interposed between the fan and the interior space below andin rear of the separating mechanism, so

as to cut off direct access of air from the interior of the separating mechanism to said drum and to cause the air to be sucked or eichaustedfr'om the interior of the separator-casinginto the drum or casing 3 through the intakes 6. The air thus exhausted from the separator into the drum or casing 3 is discharged from the latter outward and up- V,ward through the stacker-tube, together with 4the dust, chaff, and other impurities and 'formed between the upper extension 7 of the fan-casing and the rear upwardly-inclined portion of the separator-casing.

The stacker-tube may be of any preferred construction and adapted for operation in `the manner usual in machines of this class.

Below the intake end of the stacker-tube, be-

tween the latter and the blast-fan 4, is a pocket l0, which is transversely disposed, depends below the plane of the lower side of the stacker-tube, and is provided with the hinged lower side 11, which is adapted to be opened and closed, 12 being the hinged joint thereof and 13 indicating a suitable device for fastening said hinged side when the same is closed. The function of this pockety is to receive small stones, spike-teeth, and other foreign substances which are liable tobe fed with the grain into separating and threshing machines and to collect the same and prevent the same from being discharged into the fan casing or drum 3 and inj uring the fan.. When desired, such foreign substances as are caught and accumulate in the pocket 10 may be dis- IOO charged therefrom by opening the hingedside thereof, as will be understood.

The ends of the fan drum or casing 3 are provided with exterior air-intakes 14, which are adapted to be opened, entirely closed, or partly closed to any desired extent by means of adjustable wind-boards 15. intakes and said wind-boards permit the supply of exterior air to the blast-fan 4 to be regulated, and hence permit the strength of the air-currents through the interior intakes 6 to be varied, as may be required under varying conditions.

It will be understood that l[he air-currents which serve to exhaust air from the interior of the separator mechanism and discharge the same into the drum or casing of the blast-fan, which supplies the blast through the stackertube, cause the dust, chaff, and other light impurities to be carried with them from the interior of the separating mechanism and discharged through the stacker-tube, the heavier of said substances, as the chaff, descending upon the stack, together with the straw, while the lighter particles, as the dust, iioat away and are dispersed in the outer air and do not descend upon the stack, and hence the straw is cleaned by being wnnowed in the process of stacking the same.

An endless carrier 16 is arranged above the endless carrier 8 and in rear of the separating mechanism and near the rear end of the casing thereof. The said endless carrier 16 comprises a frame 17, which is pivoted at its upper end on the roller-shaft 18, has a rollershaft 19 at its lower end, and the usual endless belts and cross-slats, as at 20, connect- 1 with a separating mechanism, a stacker-tube l and a blast-fan for the purpose set forth, of i the endless carriers arranged one above the other and located between the separating ing said roller-shafts. The said endless carrieris free at its lower end and bears upon the'upper rear portion of the endless carrier 8, and said endless carrier l is operated by .,.a suitable pulley and endless belt, (not shown,) said pulley being keyed on the projecting end of its pivotal upper roller-shaft 18. Said endless carrier 11G-cooperates with the endless carrier 8 in feeding the straw fro-m the separator to.- the intake end of the pneumatic stacker-tube, and inasmuch as the frame of said endless carrier l6-is pivoted, so i Said rier and .above the intake end of the pneumatic stacker-tube and having its upper side projecting through and adapted to move vertically in a transverse opening 22 in the top of the casing of the separator, saidr screenboard thereby being adapted to rise and fall with and to accommodate itself to the motion of the free side of the endless carrier 16. The said screen-board effectually cuts o communication between the interior of the separator-frame and the intake end of the pneumatic stacker-tube, thereby effectually cutting od any back pressure of air-current from thev fan to the interior of the separator-casing, and hence correspondingly increasing the strength of the air-blast through the stackertube, thereby greatly increasing the efciency of the stacking apparatus.

Having thus described my invention, I claim- 1. In threshing and separating mechanism, the combination with a stacker-tube and a blast-fan therefor, of tubular air-intakes communicating with the interior of the separator and with the interior of the drum or casing of the blast-fan, to exhaust air from the interior of the separator, substantially as described.

2. In a pneumatic stacker, for threshing and separating mechanisms, Ithe combination with a blast-fan of the drum or casing therefor and tubular intakes communicating with the interior of the separator and with the interiorof said drum or casing and located on opposite sides of the blast-fan, substantially as described.

3. In a pneumatic stacker, the combination mechanism and the intake of the stacker-tube the uppermost endless carrier being adapted to rise and fall at its rear end, and a screen- ;board above said endless carrier to cut of -communication between the interior of the separator-casin g and the intake of the stackertube, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two Witnesses.

HANS L. HEGLAND.

Witnesses:

WM. C. BICKNELL, FRED E. SMITH.

IOl 

